for a nite group g the commutativity degree denote by d(g) and dend: d(g) = jf(x; y)jx; y 2 g; xy = yxgj jgj2 : in [2] authors found commutativity degree for some groups,in this paper we nd commuta- tivity degree for a class of groups that have high nilpontencies.

this research was conducted under greenhouse conditions to evaluate the optimum combination of irrigation and fertilizer levels to attain the best yield and quality of tomato crop. the experiment was conducted by using a split-plot design with three replicates. irrigation levels were applied to the main plots and fertilizer levels to the sub-plots. for each experimental unit, the irrigation lev...

literature concerning the effects of ramadan fasting on sports performance presents conflicting results. in this context, some studies reported a significant impairment of sports performance during the month of ramadan. however, other studies suggested that ramadan fasting has no significant effect on physical performance.  the discrepancies between the studies could be explained by time-of-day...

Objective: To propose Multi-parametric Deep Neural Network (MDNN) for modeling the impact of climate changes, multiple parameters related to weather and soil accurate crop yield prediction. Methods: In MDNN, a measure called Growing-Degree Day (GDD) is introduced measuring overall effect conditions yield. One key elements in MDNN neuron’s layer-wise activation function. order enhance predictive...

Vegetation phenology models are important for examining the impact of climate change on the length of the growing season and carbon cycles in terrestrial ecosystems. However, large uncertainties in present phenology models make accurate assessment of the beginning of the growing season (BGS) a challenge. In this study, based on the satellite-based phenology product (i.e. the V005 MODIS Land Cov...

the present article is aimed at study on agroclimatic conditions of cultivation of sunflower throughout selected substations at kurdistan  province by means of gis system. in this investigation, meteorological data have been received from synoptic stations based on daily, monthly, and annually trend from iran meteorological organization (imo) at kurdistan  province and then homogeneity of data ...